Rhino Ramps are made of durable plastic with a 17 deg. incline for low clearance vehicles. They are rated at 12,000 lb. GVW capacity with skid-resistant feet. New innovative design allows ramps to nest together and save space. 36" L. x 12" W. x 8-1/2" H. Complies with PALD 16 (ANSI Z535.4).